Jellyfish: 15 interesting facts

Jellyfish: some interesting facts

Hello people! Today we gonna talk on fauna topic: I will highlight some interesting facts about Jellyfish!
So lets start right now!
1. Jellyfish can be flat, stretched, but the most common shape of jellyfish body is domed.
2. The size of Jellyfish is also rather variable — the jellyfish can be very tiny and can grow up to two meters in diameter, and their tentacles can reach a length of 30 meters.

3. There are also colorless, almost transparent individuals, but really amazingly beautiful is so called jellyfish «Noctiluca» thunderbolts by its beauty even experienced sailors.
4. Jellyfish — one of the oldest species of the animal world: they appeared more than 650 million years ago. This means that they are older than dinosaurs and sharks.

5. Jellyfish is still explored not to the full extend, because some kinds of jellyfish inhabit in oceanic depths of up to 10 thousand meters.

6. Today, Jellyfish can be found in some oriental cuisine as one of the ingridients for gourmets, such as Japanese and Chinese.

7. Jellyfish consists of water by 95%, 3-4 % — of salt and 1-2% — of the protein. They also have no heart, no eyes, blood-circulatory system or gills.

8. The poison contained in the tentacles of jellyfish is dangerous to humans. Some jellyfish can sting like nettle, and the effect of the burn will last a few days, while others can cause paralysis that can lead to death.

9. Weight of the large jellyfish can reach up to 200 Kgs, but in fact, despite its huge weight, the jellyfish can not resist the flow.

10. Depending on the type of jellyfish, its color can be white, pink, yellow, orange, red, blue, green as well as it can be multi-colored.
11. Jellyfish are able to navigate and hunt in total darkness.

12. Most jellyfish consist of three parts: a gelatinous body, tentacles that sting and catch the prey, and delicate mouth, which absorbs food.
13. Jellyfish is commonly used in medicine. In the Middle Ages most diuretics and laxatives were produced of kornerota. And nowadays, from the poison contained in the tentacles of jellyfish, people produce drugs for the treatment of pulmonary diseases and blood pressure regulation.

14. Jellyfish help to deal with stress! By the way In Japan, jellyfish are held in aquariums. Smooth, slow movements of jellyfish soothe people, although jellyfish maintainance is very troublesome and expensive.

15. The largest jellyfish in the world is a giant Arctic jellyfish (Cyanea capillata aretica). It lives in the north-west Atlantic area. One of the representatives of this species, which was found on the beach in Massachusetts Bay, had a bell diameter 2.28 m, and its tentacles extended up to 36.5 m. length